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Give reason: Sodium, potassium and lithium are stored under oil.

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Question

Give reason:

Sodium, potassium and lithium are stored under oil.

Short/Brief Note
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Solution

  1. All three metals react with water, producing a lot of heat. As a result, hydrogen evolves and catches fire.
  2. They cannot be kept in the air because air contains moisture or water vapours. They are kept under kerosene to avoid contact with both air and water.
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Chapter 3: Metals and Non-metals - EXERCISES [Page 57]

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NCERT Science [English] Class 10
Chapter 3 Metals and Non-metals
EXERCISES | Q 12. (b) | Page 57

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